Automobile headlight



June 21, 1932. G. R. EHLERS AUTOMOBILE HEADLIGHT Original Filed Nov. 25.1928 INVENTOR m kw 6 z e Qeo/y ATTORNEY Patented June 21, 1932 GEORGE E.EHLERS, OF HOLLY OAK,

HINGER, 0F

DELAWARE A SSIGNOR or ONE-HALF T0 HENRY WILMINGTON, DELAWARE AUTOMOBILEHEAD IGHT Refiled for abandoned application. Serial No. 321,373, filedNovember 23, 1928.

This application filed June 29, 1931. Scria1No.547,76 5.

This constitutes the re-filing of an abandoned application which wasfiled in the Patent Oflice November 23rd, 1928, Serial No. 321,373,allowed November 28rd, 1929.

This invention relates to a headlamp for motor vehicles and the like,the general object of the invention being to provide means whereby glarefrom the lamp is eliminated so that there is no danger of blindingdrivers of approaching vehicles or pedestrians, while aflording fullillumination of the road.

Another object of the invention is to provide a tubular member in thelamp casing, the rear end of which is connected with the reflector sothat the rays of light must pass through said member, withfrusto-conical members in the tubular member and connected with theWalls thereof and so arranged as to form annular pockets which produceshadows, these shadows, with the non-reflecting surfaces of the tubularmember and the frusto-conical members, acting to eliminate glare.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawing andspecifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which 1- Figure1 is a longitudinal sectional view through the improved lamp.

Figure 2 is a front View thereof.

Figure 3 is a perspective View of one of the frusto-conical members.

Figure 4: is a View showing a modification.

In these views, the numeral 1 indicates the casing of the lamp which isshown as of the elongated or barrel type. The rear end of the casing isconstructed to receive the usual lamp bulb socket 2 and the plug 3, theusual reflector 4 being connected with the socket. The bulb is shown at5. The front end of the casing is closed by the usual lens 6, and a refiector 7 is placed in rear of the lens. A tubular member 8, whichtapers slightly from its front or outer end to its rear or inner end, isplaced in the casing with its rear end bolted or otherwise fastened tothe reflector xand its front end fastened to the reflector 7, thisreflector having ahole therein to receive the front end of the member 8.A plurality of frusto-conical members 9 isarranged in the member 8, eachmember 9 having'a substantially cylindrical rear part 10 which issuitably fastened to the member 8. These members 9 are of graduallyincreasing size so that they can be placed in spaced relation in themember 8, with the front member having its flange connected with thefront end of the member 8 and the conical part thereof extending intothe reflector 7, with its outer end close to the lens 6. The members 9are so formed that their inner edges lie in the same plane, as clearlyshown in Figure 1, and these members, as well as the interior parts ofthe member 8, have black surfaces so that they are non-reflecting. Thesemembers 9 form annular pockets 11 which produce shadows as the rays oflight cannot enter these pockets, and these shadows, with thenon-reflecting surfaces, effectually prevent glare and thus there is nodanger of blinding drivers of approaching vehicles or pedestrians. Therays of light passing through the member 8 and the members 9 willilluminate the road.

Instead of forming the members 9 as above described, such members may beformed of a spiral strip 9 which is placed in the member 8, theconvolutions of this strip taking the place of and serving the samepurpose as the member 9, as will be clearly seen from an inspection ofFigure 4.

It is thought from the foregoing description that the advantages andnovel features of the invention will'be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of theseveral parts, provided thatsuch changes fall within the scope of the appended claims.

What I claim is 2-- l. A headlamp comprising a casing, a bulb socket inthe rear end thereof, a bulb in said socket, a reflector connected withthe socket, a tubular member arranged in the casing with its rear endconnected with the reflector, said member tapering from its front end toits rear end, the front end of said member being arranged adjacent thefront end of the casing, supporting means for said front end of themember and annular means within the member having surfaces ofnon-reflecting material and forming annular pockets which produceshadows. U

2. A headlamp comprising a casing, a bulb socket in the rear endthereof, a bulb 1n sald socket, areflector connected with the socket,"

a tubular member arranged in the casing with its rear end connected withthe reflector, said member tapering from its front end to its rear end,thefront end of said member being arranged adjacent the front end of thecasing, supporting means for said front end of the: member and membersofsubstantially annular shape connected with the interior of the taperedmember and extending forwardly and inwardly from said member to formpockets for producing shadows, said members having non-reflectingsurfaces.

3. A headlamp comprising a casing, a bulb socket in the rear endthereof, a bulb in said socket, a reflector connected with the socket, atubular member arranged in the casing with its rear end connected withthe reflector, said member tapering from its front end to its rear end,the front end of said member being arranged adjacent the front end ofthe casing, supporting means for said front end of the member anda-plurality of frusto conical members arranged in spaced relation in thetaperedmember, with their rear ends connected with said member,,saidfrusto-conical members having non-reflecting surfaces and formingpockets to produce shadows,the inner edges of said members beingarranged in the same plane.

In testimony whereof I affix my signature.

GEORGE vR. EHLERS.

